Product Review

The Solar Motion Sensor with Wireless Motion Alert is a convenient and affordable safety / security system. 
1.weatherproof outdoor solar sensor with adjustable sensitivity control. 
2.The solar sensor may be placed up to a 1/2 mile from the base unit in ideal condition.
3.Alerts with light and sound when vehicles or pedestrians approach within a 30 feet radius.
4.Expandable up to unlimited solar sensors and unlimited receiver, it is perfect for home, business, property and work site.
5.Super simple to set up. Takes only a few minutes to set up. Easy do it yourself installation. 
6.Set includes one solar sensor/one receiver. Detects motion in up to 4 different zones, Low battery  indicator included.
7.Receiver can be plugged in using included AC adapter or can run on (4) AAA batteries.